Airwell Wespak 5.05 [12/20] Water connections continued

7.3 - Condensate drain connection

The condensate drain pan is supplied with 7/8" OD copper

tube outlet.

Ensure that water condensate will be properly drained out

from the drain pan which must be connected to the main

drain piping.

The drain line must be installed with a downward slope.

Ensure water trap is available on drain piping.

On completion, the drain line should be insulated.

Warning

All foreign material must be removed from the drain

pan.

Caution

Check that there is no counter-slope which would prevent

condensates from flowing.

Trap for condensate evacuation

The height A must be equal to 2 times the value of the

negative pressure present in the condensate reception

zone (example : negative pressure = 40 mm, height A =

80 mm, height B = 160 mm).

7 - Water Connections (continued)

7.4 - Winterizing water coils

In winter, due to a general shutdown of the installation or

a failure of outdoor air damper control, coil freeze-up may

occur.

To avoid coil damage, it is recommended to drain

completely the non used coils or to fill them with an anti-

freeze solution.

The concentration of anti-freeze solution must be regularly

and carefully checked before each winter season.

It is highly advised to place a heating coil before a cooling

coil for an operation during winter season.

Caution

Carefully read instructions for mixing anti-freeze solution

used. Some products will have a higher freezing point in

its natural state than when mixed with water.

The freezing of coils is not the responsibility of the

manufacturer.